The power source of pulsed current

 

(57) Abstract:

Usage: the invention relates to a Converter equipment and can be used as a power source (PIS) of electroflocculation. Essence: the invention provides a reduction in energy costs for carrying out process contains connected to the positive and negative input pins (YOU) series circuit (PC) of the first thyristor (T) 1, five capacitors (KN) 2-6 and the first inductor (DR) 7, five diodes 8-12, shunt KN 2-6 HRC, five TEE 13-17, and two TEE 13, 14 are connected to the cathode (KA) and three TEE 15-17 - anodes (an), a common connection point (FROM) TI 13-17 connected to the first output YOU, EN T 13, 14 connected respectively to the plates of the first KN 2 HRC, TI cathodes 15, 17 are connected respectively to the common connection points of the third KN 4 and the fourth KN 5, the fourth KN 5 and fifth KN 6 HRC and the fifth connection 6 KN and the first DR 7 PC, second, ETC 18, and FROM the connection of the second KN 3 and third 4 KN PC is connected to the second output through the second, ETC 18. The DC voltage source 19 is connected to the input YOU and the load 20 to the output YOU FE. 1 Il.

The invention relates to a Converter equipment and to supply a pulse current, containing anode connected group to the positive input output single-phase bridge SCR with a capacitor in the diagonal AC, and the cathode to the first group the output, the second output of which is connected to the negative input / output (O. Bulatov, and other Thyristor-condensing power supply for Electrotechnology. M. Energoatomizdat, 1989, S. 23).

Lack of supply is the increased cost of electricity to carry out the process at work in the installation of electroglottography due to passivation of the electrodes.

Known power supply pulse current, containing anode connected to the positive input the output of the thyristor is shunted by counter diode and a serial circuit of a capacitor and inductor, and a cathode to the first output output, the second output of which is connected to the negative input output output conclusions shunted by counter diode (O. Bulatov, and other Thyristor-condensing power supply for Electrotechnology. M. Energoatomizdat, 1989, S. 26).

Lack of power supply are higher costs of electricity in the process when R is Kim the technical nature of the invention is a power supply pulse current (O. Bulatov, and other Thyristor-condensing power supply for Electrotechnology. M. Energoatomizdat, 1989, S. 28), which is considered as a prototype.

The prototype contains anode connected to the positive input the output of the first thyristor, the cathode of which is connected to the anode of the second thyristor, the cathode of the second thyristor is connected to the first output output serial circuit of the inductor and capacitor, a free output inductor connected to the negative input of the output diode, the anode of which is connected to the common connection point of the inductor and capacitor series circuit and the second output pin and the cathode to the first output pin, a free plate of the capacitor series circuit is connected to the common connection point of the first and second thyristor.

The disadvantage of the prototype is the increased cost of electricity to carry out the process at work in the installation of electroglottography due to passivation of the electrodes.

The invention is directed to solving the problem of improving the conditions for approval of a power source of pulsed current to the load in the installation of electroglottography, as well as improving energy performance C the Oia.

This is achieved by the fact that the power source of pulsed current, containing anode connected to the positive input the output of the first thyristor, the cathode of which is connected to the anode of the second thyristor, the cathode of the second thyristor is connected to the first output output to the first serial circuit of the inductor and capacitor, a free output inductor connected to the negative input of the output diode, the anode of which is connected to the common connection point of the inductor and capacitor of the first serial circuit, entered the second serial chain of n capacitors connecting the free capacitor plate of the first series circuit and a common connection point of the first and second thyristors, n diodes, shunt counter capacitors of the second series circuit, a second inductor and n thyristors, and m thyristors are connected to the anodes, and n-m of the thyristors are connected to the cathodes, a common point of connection of thyristors connected to the first output pin, the diode cathode connected to the common connection point of the first and second sequential circuit, the cathodes m thyristors connected respectively to the common connection point of the inductor and capacitor of the first series circuit, the common connection point of the first and second after the drop-m-1, m capacitors of the second series circuit is connected to the second output to output through the second orifice, the anodes of the n-m thyristors are connected to common connection points m.n capacitors of the second series circuit.

A significant difference of describing the invention, is the reduction of energy costs for carrying out process electroglottography. This is achieved by eliminating the phenomenon of passivation of the electrodes, as well as the best conditions for approval of a power source to the load in the installation of electroglottography.

Reducing energy costs for carrying out the process of electroglottography is achieved technical result due to the introduction of new elements and relationships in the circuit of the device, i.e. the distinguishing characteristics. Thus, the distinctive features of the declared power supply pulse current is significant.

The drawing shows a schematic diagram of the power supply pulse current corresponding to the option run n 4, m 3.

The power source of pulsed current, includes, connected to the positive and negative input conclusions pole capacitor series circuit, five thyristors 13-17, and two thyristors connected cathodes and three thyristor anode common connection point of the thyristors connected to the first output pin, the anodes of the two thyristors connected respectively to the plates of the first capacitor series circuit, the cathodes of the three thyristors connected respectively to the common connection points of the third and fourth, fourth and fifth capacitors in series circuit and the common connection point of the fifth capacitor and the first inductor series circuit, a second inductor, and a common connection point of the second and third capacitors in series circuit connected to the second output to the output through the inductor. The DC voltage source 19 is connected to the input pins, and the load 20 to the output pins of the device.

The power source of pulsed current works in the following way. The control pulses for the thyristors 1, 13-17 served alternately in sequence: 1, 14, 15, 16, 17, 13. When turning on the thyristor 1 is the charge of the capacitors 2-6 from the constant voltage source by circuit: 19 1 2 4 5 6 7 - 19. The capacitance of the capacitors 2-6 in the General case can be selected as equal and different. In case of equality of tanks capacitors 2-6 OST voltage source 19. Choke 7 provides the right conditions for commutation of the thyristor 1. Next, the thyristor 14 is turned on by the end of the delay interval from the moment of turn-off thyristor 1, which is required for recovery of governors of the properties of the latter. When the thyristor 14, the capacitor 3 is discharged through the circuit: 3 14 20 18 3. Through the load 20 flows a current pulse of positive polarity. The energy stored in the electric field of the capacitor 3 in the interval of conduction of the thyristor 1, completely consumed in the load 20. The throttle 18 reduces the rate of rise of current through the thyristor 14 at the time of inclusion. The diode 9 prevents charging of the capacitor 3 to a voltage of negative polarity (opposite to the original). After turning off the thyristor 14 in the source there is a pause, during which the thyristor 14 is restored to its control properties. At the end of the interval pause turns on the thyristor 15. Through the load 20 flows a current pulse of negative polarity on the circuit: 4 18 20 15 4. Next, the electromagnetic processes in the source flow is similar. When turning on the thyristor 16 through the load 20 flows a current pulse of negative polarity on the circuit: 5 10 18 20 16 5. When turning on the thyristor 17 through the load 20 Teuku 20 flows a current pulse of positive polarity on the line: 2 13 20 18 9 2. Full cycle ends at the moment of switching on of the thyristor 1. In each cycle of operation of the electromagnetic processes in the power source completely repeated.

Reviewed power supply pulse current corresponds to a particular case of the implementation of the scheme for n 4, m 3. If the capacitance of the capacitors 2-6 different, when the thyristor 1 they charge to voltage is inversely proportional to the capacitance. In this case the electromagnetic processes in the device proceed similarly. The values of the coefficients n and m are selected depending on the voltage of the constant voltage source, the desired level of output voltage, power devices, the allowable cost of electricity, the temporal characteristics of the technological process and quality of water exposed electroglottography. Variant implementations for n 4, m 3 is designed for the case of power supply from the constant voltage source 500 Century.

Electromagnetic processes in the device for n 4, m 3 are similar to those described.

The proposed power supply pulse current ensures effective coordination with the load level, voltage and power, as well as the form of current pulses through the electrodes electroflocculation of electroflocculation. As a result, compared with the prototype, decreases the time of carrying out the process, reduces the cost of electricity, improving the quality of water purification. According to experimental data the costs of electricity for carrying out process can be reduced by 30-250% depending on water quality under electroglottography. Compared with the prototype of the proposed power supply pulse current can reduce the time of the process in 1.5-3 times and improve the quality of water purification by 5-10%

The power source of pulsed current, containing anode connected to the positive input the output of the first thyristor, the cathode of which is connected to the anode of the second thyristor, the cathode of the second thyristor is connected to the first output output to the first serial circuit of the inductor and capacitor, a free output inductor connected to the negative input of the output diode, the anode of which is connected to the common connection point of the inductor and capacitor of the first serial circuit, characterized in that the input of the second serial chain of n capacitors connecting the free capacitor plate of the first series circuit and a common point connected to the ora of Drossel and n thyristors, and m thyristors are connected to the anodes, and n m thyristors are connected to the cathodes, a common point of connection of thyristors connected to the first output pin, the diode cathode connected to the common connection point of the first and second serial circuits, the cathode m of thyristors connected respectively to the common connection point of the inductor and capacitor of the first series circuit, the common connection point of the first and second series circuit and the common connection points 1 m-1 capacitors of the second series circuit, a common connection point (m 1)-th and m-th capacitor of the second series circuit is connected to the second output to output through the second orifice, anodes n m thyristors are connected to a common connection point m of the n capacitors of the second series circuit.

 

Same patents:

The invention relates to the forming pulse current, in particular for the pump pulse injection lasers

The pulse generator // 2072746

The invention relates to electrical power and can be used in equipment designed to generate a powerful current pulses, in particular, in the electro-hydraulic installations

The invention relates to a pulse technique and can be used in various automated control systems of technological processes, automation of scientific experiments

The invention relates to pulse engineering, and related devices "slow charge" capacitive energy storage from three-phase AC power source

The invention relates to electrical engineering, in particular to devices for igniting burners

FIELD: transforming equipment engineering, possible use in electric power sources.

SUBSTANCE: adjustable decreasing transformer of direct voltage contains input, output and common clamps for connection of, respectively, source of direct voltage and load, n chains connected by their first outputs to common clamp 25. Each chain consists of serially connected discharge diode 1, capacitor 2 and controllable discharge key 3. transformer also contains (n-1) discharge diodes 4, each of which is enabled between differently named outputs of capacitors of appropriate adjacent chains, controllable charge key 5, enabled between input clamp and discharge bus 6, controllable adjusting elements 7-11, each of which is connected in parallel to discharge diode 4 of appropriate chain and two groups of commutation elements, while each commutation element of first group 12-17 is enabled in parallel to discharge key 3 of appropriate chain, while each commutation element of second group 18-23 is enabled between discharge bus 6 and common point of connection 24 of capacitor 2 and discharge key 3 of appropriate circuit. Introduced into transformer are n groups of m commutation elements and (m-1) output clamps for connecting additional loads.

EFFECT: extended functional capabilities due to provision of operation of device for several loads with varying output voltages; significantly improved mass-dimensional characteristics.

1 dwg

FIELD: electricity.

SUBSTANCE: invention relates to electrical engineering and can be used for changing voltage in a network. The device for varying voltage in network is a connection of a set of capacitors or modified capacitor for "pumping" electrical energy from a network with "transformation" of supply voltage. Shortcomings related to manufacture of transformers, which require large material inputs and use of expensive raw material are excluded, as well as servicing and need for the user to settle for power, provided by the transformer substation or some other system for changing voltage. The device can be installed into an open line of the high side. Installation of a capacitor in the circuit leads to increase in cos φ, which is good for the circuit as a whole. The invention does not transform electrical energy, but pumps it out of the network, as it were. Pumping power depends on the capacitance of the device. Large capacitance is required for a high power user. Knowing the required power and voltage of the user and the high side, it is easy to calculate capacitors and standardise the proposed device as a whole. The device allows for considerable decrease in power used by the network due to that, the source of electrical energy supports voltage harmonics and not power in the network.

EFFECT: use of a capacitor as a transformer.

2 cl, 2 dwg

FIELD: electricity.

SUBSTANCE: single-step DC voltage converter comprises transformer, which secondary windings are coupled to output pins of one or several converter outputs, primary winding is coupled to field-effect transistor and feedback winding is coupled to feedback divider, control transistor, time-setting capacitor, three logic inverters and logic AND element, between output of the latter and input of the first logic inverter there is in-series RC-circuit. At low loads or in idle mode gating time of the field-effect transistor is defined not by the time-setting capacitor but by low time constant of the in-series RC-circuit, at that disturbance voltage does not affect operation of the device.

EFFECT: excluded loss in control stability in idle mode and improved reliability of the device at large.

4 cl, 3 dwg

FIELD: measurement technology; pulse stream generators.

SUBSTANCE: proposed Poisson pulse stream generator has k + 1 memory devices, comparison unit, k digital-to-analog converters, control circuit, register, counter, selector, k bell-shaped pulse generators, adder, voltage-to-current converter, and clock generator.

EFFECT: enlarged generation range of pulses adequate to ionization chamber signals.

1 cl, 2 dwg

FIELD: digital pulse engineering.

SUBSTANCE: proposed device designed for shaping pulses of desired length for each of three events during power turn-on in response to off-operation button signal incorporating provision for chatter elimination in case of skip or stop of changes in input pulses on detection enabling has first and second monostable restart multivibrators 1, 4, off-operation button 2, flip-flop 3, shaper 5 of signal responding to button-provided power turn-on which is built around capacitor 12, resistors 13, 14, diode 15 and two NAND gates 6,7, as well as AND gate 8, controllable pulse generator 9, logical 1 input, pulse signal input 10, and control input 11. Controllable pulse generator 9 is built around AND gate 16, NAND gate 17, resistors 18, 19, and capacitor 20. Device can shape input pulse during power turn-on period and function as hardware watch timer implemented in the course of forward and backward automatic interaction with system microcontroller.

EFFECT: enlarged functional capabilities of device.

1 cl, 1 dwg

Flip-flop device // 2248662

FIELD: pulse engineering, computer engineering, and control systems.

SUBSTANCE: proposed device has RS flip-flop 1, two NAND gates 2, 3, EXCLUSIVE OR gate 4, inverter 5, four resistors 6 through 9, capacitor 10, memory item 11 built around magnetic core with rectangular hysteresis loop that carries write and read coils, two diodes 12, 13, control input 14, and common bus 15.

EFFECT: reduced input current from power supply.

1 cl, 1 dwg

Flip-flop device // 2248663

FIELD: pulse engineering.

SUBSTANCE: proposed flip-flop device has RS flip-flop 1, EXCLUSIVE OR gates 2,3, NOR gates 4, 5, inverters 6, 7, 8, diodes 15, 16, resistors 9 through 12, capacitors 13, 14, memory items 17, 18 built around magnetic cores with rectangular hysteresis loop and single coil, input bus 19, and common bus 20. Combining write and read coils of memory items 17 and 18 makes it possible to increase coil number of write and read coils by 1.5 times, in each of half-coils of memory items 17 and 18, which reduces magnetizing current through cores of memory items 17 and 18 by approximately 1.5 times due to enhancing ratings of limiting resistors 11 and 12.

EFFECT: reduced input current from power supply.

1 cl, 1 dwg

Flip-flop device // 2248663

FIELD: pulse engineering.

SUBSTANCE: proposed flip-flop device has RS flip-flop 1, EXCLUSIVE OR gates 2,3, NOR gates 4, 5, inverters 6, 7, 8, diodes 15, 16, resistors 9 through 12, capacitors 13, 14, memory items 17, 18 built around magnetic cores with rectangular hysteresis loop and single coil, input bus 19, and common bus 20. Combining write and read coils of memory items 17 and 18 makes it possible to increase coil number of write and read coils by 1.5 times, in each of half-coils of memory items 17 and 18, which reduces magnetizing current through cores of memory items 17 and 18 by approximately 1.5 times due to enhancing ratings of limiting resistors 11 and 12.

EFFECT: reduced input current from power supply.

1 cl, 1 dwg

Flip-flop device // 2248664

FIELD: pulse engineering.

SUBSTANCE: proposed flip-flop device has RS flip-flops 3, 16, EXCLUSIVE OR gates 1, 2, NAND gates 5, 6, NOR gates 10, 11, resistors 4, 7, 12, 13, capacitors 14, 15, memory items 8, 9 built around magnetic core with rectangular hysteresis loop and single center-tapped coil, input bus 21, and common bus 22. Combining read and write coils of memory items 8, 9 makes it possible to increase turn number in read and write coils by 1.5 times, in each of half-coils of memory items 8 and 9, which reduces magnetizing current through cores of memory items 8 and 9 approximately by 1.5 times due to enhancing ratings of limiting resistors 4 and 7.

EFFECT: reduced input current from power supply.

1 cl, 1 dwg

Flip-flop device // 2248664

FIELD: pulse engineering.

SUBSTANCE: proposed flip-flop device has RS flip-flops 3, 16, EXCLUSIVE OR gates 1, 2, NAND gates 5, 6, NOR gates 10, 11, resistors 4, 7, 12, 13, capacitors 14, 15, memory items 8, 9 built around magnetic core with rectangular hysteresis loop and single center-tapped coil, input bus 21, and common bus 22. Combining read and write coils of memory items 8, 9 makes it possible to increase turn number in read and write coils by 1.5 times, in each of half-coils of memory items 8 and 9, which reduces magnetizing current through cores of memory items 8 and 9 approximately by 1.5 times due to enhancing ratings of limiting resistors 4 and 7.

EFFECT: reduced input current from power supply.

1 cl, 1 dwg

FIELD: computer science.

SUBSTANCE: device has random numbers source, N-digit selector-multiplexer, RAM, ranges control block, generations number control block, J-input OR element, AND elements block. Because series of given values of data set is broken in ranges and frequency of their appearance is set within certain limits, random series is generated with distribution law, presented in form of ranges.

EFFECT: broader functional capabilities.

3 cl, 7 dwg

Up!